SingAstro

No guiding for this, due to weight consideration, Alt Polar alignment done through putting Digital Level Meter on mount top surface, Az polar alignment was done through Meade 12 mm illuminated eyepiece this round (to simulate situation for forgetting to bring guide scope), so it was found to be a li...

I just owned a Ioptron SkyGuider Pro recently, measured its Periodic Error at 40 + pk-pk but found it conflicting to my actual test, surprisingly, my actual test on Pollux for 2.5 mins shot at ISO 100 found stars to be as good for mount that is of 20 + pk-pk, don't know what went wrong. https://farm...

I used my imaging scope (420mm f.l.) to test the mount Periodic Error for better resolution, the curve looks much smoother than earlier one. n.b. This mount is already heavily loaded when i put this 2.3 kg scope (with scope rings + dovetail = 2.8 kg), i should not add in the guide scope at the same ...

Here is a example of the PHD Drift Alignment for Ioptron SkyGuider Pro Mount, hopes it help, Good Luck https://farm8.staticflickr.com/7877/47333199211_3a75ef524b_b.jpg Imaging n Guiding Set up by Peter Loo , on Flickr https://farm8.staticflickr.com/7905/47280665802_3385033680_b.jpg Mount too far Eas...

My Ioptron Sky Guider Pro arrived yesterday, just tested it tonight, cannot achieve 8 arc sec. https://farm8.staticflickr.com/7896/47318682241_68189cf1c1_b.jpg Digital Level Meter by Peter Loo , on Flickr https://farm8.staticflickr.com/7893/46595511404_46d016892c_b.jpg PHD_Software by Peter Loo , on...

Thanks Richard

Excellent Ivan, and i like your Horse Head neb very much

Thanks Ivan

Mount set up: Vixen GPD2 German Equatorial Mount Scope: TS 90mm APO refractor, 600mm Focal Length Guide scope: Orion Star Shoot Autoguider Camera: Canon 500D Baader Mod (on filter) Exposure: Selected ISO 800, 60s single shot for 1 of the photo & 10 shots combined for the one with star trial Plac...